Home / 28,837.80-43,248.60-9,122.40

Finding the Fourth Proportional to 28,837.80, 43,248.60 and 9,122.40

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Solution

The fourth proportional to 28,837.80, 43,248.60 and 9,122.40 is: 13,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,837.80 : 43,248.60 = 9,122.40 : x
  2. Step 2: Convert to fraction form
    28,837.80/43,248.60 = 9,122.40/x
  3. Step 3: Cross multiply
    28,837.80x = 43,248.60 × 9,122.40
  4. Step 4: Simplify right side
    28,837.80x = 394,531,028.64
  5. Step 5: Solve for x
    x = 394,531,028.64/28,837.80
  6. Step 6: Final answer
    x = 13,681.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.